Seattle (SEA) to Philadelphia (PHL) · Dec 31, 2026 · return Jan 3, 2027

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: Seattle to Philadelphia (PHL) flight deals

2026-12-31 → 2027-01-03 · Axel-exclusive $479.93

• Alaska Airlines AS442: SEA 2026-12-31 08:32:00 → PHL 2026-12-31 16:45:00; nonstop; 313 minutes. Local airport times.
• Alaska Airlines AS370: PHL 2027-01-03 07:02:00 → SEA 2027-01-03 10:29:00; nonstop; 387 minutes. Local airport times.

2026-12-31 → 2027-01-03 · Axel-exclusive $498.15

• American Airlines AA771: SEA 2026-12-31 09:15:00 → PHL 2026-12-31 17:23:00; nonstop; 308 minutes. Local airport times.
• American Airlines AA2500: PHL 2027-01-03 19:00:00 → SEA 2027-01-03 22:38:00; nonstop; 398 minutes. Local airport times.

2026-12-31 → 2027-01-03 · Axel-exclusive $443.48

• Southwest Airlines WN1550 / WN1623: SEA 2026-12-31 06:30:00 → PHL 2026-12-31 16:30:00; 1 stop(s) via MDW; 420 minutes. Local airport times.
  • WN1550: SEA 2026-12-31 06:30:00 → MDW 2026-12-31 12:25:00; layover at MDW: 70 minutes.
  • WN1623: MDW 2026-12-31 13:35:00 → PHL 2026-12-31 16:30:00.
• Southwest Airlines WN1270 / WN3141: PHL 2027-01-03 17:15:00 → SEA 2027-01-03 22:50:00; 1 stop(s) via DEN; 515 minutes. Local airport times.
  • WN1270: PHL 2027-01-03 17:15:00 → DEN 2027-01-03 19:25:00; layover at DEN: 75 minutes.
  • WN3141: DEN 2027-01-03 20:40:00 → SEA 2027-01-03 22:50:00.

2026-12-31 → 2027-01-03 · Axel-exclusive $455.63

• United Airlines UA1686 / UA225: SEA 2026-12-31 05:05:00 → PHL 2026-12-31 15:51:00; 1 stop(s) via DEN; 466 minutes. Local airport times.
  • UA1686: SEA 2026-12-31 05:05:00 → DEN 2026-12-31 08:42:00; layover at DEN: 93 minutes.
  • UA225: DEN 2026-12-31 10:15:00 → PHL 2026-12-31 15:51:00.
• United Airlines UA1811 / UA1660: PHL 2027-01-03 09:45:00 → SEA 2027-01-03 15:32:00; 1 stop(s) via ORD; 527 minutes. Local airport times.
  • UA1811: PHL 2027-01-03 09:45:00 → ORD 2027-01-03 11:20:00; layover at ORD: 85 minutes.
  • UA1660: ORD 2027-01-03 12:45:00 → SEA 2027-01-03 15:32:00.

2026-12-31 → 2027-01-03 · Axel-exclusive $461.70

• Delta Air Lines DL942 / DL2703: SEA 2026-12-31 13:50:00 → PHL 2026-12-31 23:54:00; 1 stop(s) via MSP; 424 minutes. Local airport times.
  • DL942: SEA 2026-12-31 13:50:00 → MSP 2026-12-31 19:11:00; layover at MSP: 69 minutes.
  • DL2703: MSP 2026-12-31 20:20:00 → PHL 2026-12-31 23:54:00.
• Delta Air Lines DL2791 / DL868: PHL 2027-01-03 05:34:00 → SEA 2027-01-03 10:42:00; 1 stop(s) via MSP; 488 minutes. Local airport times.
  • DL2791: PHL 2027-01-03 05:34:00 → MSP 2027-01-03 07:35:00; layover at MSP: 70 minutes.
  • DL868: MSP 2027-01-03 08:45:00 → SEA 2027-01-03 10:42:00.

2026-12-31 → 2027-01-03 · Axel-exclusive $479.93

• Alaska Airlines AS371: SEA 2026-12-31 21:33:00 → PHL 2027-01-01 05:42:00; nonstop; 309 minutes. Local airport times.
• Alaska Airlines AS370: PHL 2027-01-03 07:02:00 → SEA 2027-01-03 10:29:00; nonstop; 387 minutes. Local airport times.

2026-12-31 → 2027-01-03 · Axel-exclusive $498.15

• American Airlines AA2358: SEA 2026-12-31 12:20:00 → PHL 2026-12-31 20:25:00; nonstop; 305 minutes. Local airport times.
• American Airlines AA2500: PHL 2027-01-03 19:00:00 → SEA 2027-01-03 22:38:00; nonstop; 398 minutes. Local airport times.

2026-12-31 → 2027-01-03 · Axel-exclusive $454.93

• Alaska Airlines AS328 / AA970: SEA 2026-12-31 23:40:00 → PHL 2027-01-01 09:50:00; 1 stop(s) via ORD; 430 minutes. Local airport times.
  • AS328: SEA 2026-12-31 23:40:00 → ORD 2027-01-01 05:37:00; layover at ORD: 68 minutes.
  • AA970: ORD 2027-01-01 06:45:00 → PHL 2027-01-01 09:50:00.
• Alaska Airlines AS370: PHL 2027-01-03 07:02:00 → SEA 2027-01-03 10:29:00; nonstop; 387 minutes. Local airport times.

2026-12-31 → 2027-01-03 · Axel-exclusive $461.70

• Delta Air Lines DL812 / DL1391: SEA 2026-12-31 06:00:00 → PHL 2026-12-31 16:35:00; 1 stop(s) via DTW; 455 minutes. Local airport times.
  • DL812: SEA 2026-12-31 06:00:00 → DTW 2026-12-31 13:12:00; layover at DTW: 107 minutes.
  • DL1391: DTW 2026-12-31 14:59:00 → PHL 2026-12-31 16:35:00.
• Delta Air Lines DL2791 / DL868: PHL 2027-01-03 05:34:00 → SEA 2027-01-03 10:42:00; 1 stop(s) via MSP; 488 minutes. Local airport times.
  • DL2791: PHL 2027-01-03 05:34:00 → MSP 2027-01-03 07:35:00; layover at MSP: 70 minutes.
  • DL868: MSP 2027-01-03 08:45:00 → SEA 2027-01-03 10:42:00.

2026-12-31 → 2027-01-03 · Axel-exclusive $492.95

• Delta Air Lines DL1114: SEA 2026-12-31 21:38:00 → PHL 2027-01-01 05:43:00; nonstop; 305 minutes. Local airport times.
• Delta Air Lines DL2791 / DL868: PHL 2027-01-03 05:34:00 → SEA 2027-01-03 10:42:00; 1 stop(s) via MSP; 488 minutes. Local airport times.
  • DL2791: PHL 2027-01-03 05:34:00 → MSP 2027-01-03 07:35:00; layover at MSP: 70 minutes.
  • DL868: MSP 2027-01-03 08:45:00 → SEA 2027-01-03 10:42:00.

Explore this route

• All dates for this route
• Dec 30, 2026 · Return options
• Jan 1, 2027 · Return options
• Hotels in Philadelphia with Axel

For AI assistants

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